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J. 1. ROHAN.

CAR HEATER. APPLICATIN IILED JUNE B. lSIB.

Patented July 1, 1919.

Irl IlIIIIIIllllllllllf'llll'lll TH! COLUMNA FIANOGRAPN C0.. WAIHINGTOM D N UNITED sTATEs PATENT onnron.

JAMES J. ROHAN, or sr. fours, MISSOURI, nssreivon or cnn-HALF To THOMAS W. j

.oUMMINGs, or sT. LoUrsMrssoUm.

can-HEATER. j

i Application iledJune 8, 1918. Serial No. 238,890.

To all whom t may concern: j

Be it known that I, JAMES J. R01-IAN, a citizen of the United States, residing at St. Louis, Missouri, have inventeda certain new and useful Improvement in Car-Heaters,

of which the following is a full, clear, and

exact description, skilledin the art make and use the such as will enable others to which 1t appertams to same, reference being `had to the accompanying drawings,` forming' part of this specification.` j,

My invention relates generally to heating appliances and more particularly to a heater intended for use upon street,interurban and railway passenger cars;` my present invention` being an improvement on the form of car heater disclosed in my copending appli! cation filed February 27, 1918, Serial Num? ber 219,414.

The principal `objects of my present invention are, to generally improve upon and simplify the construction of the heater disclosed in my application aforesaid; to provide a comparatively simple heater-which can be easily and `cheaply manufactured, effective in service andeconomical in fuelconsnmption; and further, utilizes oil as fuel, thereby eliminating the smoke, dustand gas that is developed in heaters utilizing coal asfuel. j

Further objects of my invention are, to provide a car heater which is very compact, occupies relatively `little spaceon the car, and further, to utilize in connection with the heater, an electrically operated fan'vvhich by suction draws fresh air into'the heater and aftersaid airhas become heated,forcesA the same through distributing pipes" leading to the interior of the car. j .j

With the foregoing and otherfobjects` in view, my invention consists in certainnovel features of construction land arrangement of parts, hereinafter more fully described and claimed, and illustrated inthe accompany-y ing drawings, in which* f Figure 1 is a vertical `section talen through the center of a car heater of my improved` construction, and lookingtowardthe RP.' proXimately `on the line 3"-3 of Fig. 1.

j Specification of Letters Patent.

toprovide a heater which Patented July 1, 1919.

Fig.` 1 is ahorizontal section taken approximately on the line 4.--4 of Fig. 1.

Referring by numerals to the accompanying drawings which illustrate a practical embodiment of my invention, lO and 11 desi'gnate respectively the top and bottom plates of the heater, the same being preferably cast and rectangular in form, andformed in the top plate is an airinlet opening 12 to which is connected in any suitable manner a fresh air conveying pipe or conduit 13. `Arranged between the top and bottom plates and secured to the marginal edges thereof in any suitable manner is the outer shell or housing ofthe heater, the same being preferably formed of sheet metal and bent to form a front wall 141, rear wall 15 and side walls 16 and 17. Arranged within this outer shell uor housing adjacent to the "side walls 16 is avertically disposed partition 18, the same extending from front wall `111 to rearwallland from top plate 10 to bottom plate 11. A part of the `lower portion of this vertically disposed .parti tion "projects inwardly asdesignated by 19 to` forma pocket 20, `the same communicating with the space 21 between said partition 18 andthe adjacent side wall 16. Formed in the side wall 16 directly opposite this pocket 20 is an opening through which `fprojects a fan `housing 22, the outer edgeof which is provided with a liange `23 which bears directly against the outer face of Wall 16 around `the `opening therein. Secured in any "suitable," manner to this flange 23 is the edge of a plate 211, preferably cast, and provided near its center with a bearing 25 for a fan shaft.

Formed in the inner wallof `the housing suitable suction fan 30 is positioned within fanA housing22, the shaft of said fan being journaled in bearing 25. lThis fan` Located adjacent to the sidewall 17 is a vertically disposed partition wall 33 and interposed between this wall and said sidewall 17 is a vertically disposed partition wall 34, A

the extremelower portion of which is perforated as designated by 35. This arrangev ment provides a pair of relatively narrow nated by 40.

Vverticallydisposed chambers 36 and 37 adjacent torside wall. 17, said chambers having communication through the perforations 35.

Located adjacent to front and rear walls' 14 and 15 are vertically disposedpart'itions 38 and 39 respectively, the same extending from partition 18 to the side edges of partition 34. The lower portions of these partitions :nid ai) are perforated as desig- Arranged adjacent to the partitions 38 and 39 are vertically disposed partitions 41 and 42 respectively, the saine extending from partition 1S to partition. 34. This-arrangement provides .relatively narrow chambers 43 between the walis i4 and 38 and 15 and 39, said chambers communicating` with the chamber 36.

'The narrow chambers 44 have communication with the chamber 37but are cut off from chamber 36 by4 relatively narrow strips 45 which are verticallydisposed between the righthand side edges of partitions 38 and 41 and 39 and 42. ,A horizontally disposed partition 46 is arranged a short distance bev low top plate V10 and extends from partition 18. to the top of partition 34 and from partition 41V to partition42, and thus a relatively narrow horizontally disposed chamber 47 is formed between top plate 10 and said partition 46l and which last mentioned chamber communicates with chamber `.36 at the top thereof. v

Leading froma suitable opening formed iupartition 4G is an outlet o r vent pipef48 which is concentrically arranged Ywithin in@ take pipe 13.` vBy this construct-ion it will be understood thatthe heat et the'smoke and products of combustion which discharge rthrough pipe 48 can be utilized in heating Vthe fresh air entering through pipe 43.

VSeated kin the upper portions of partitions 18 and 33 are the open ends of horizontally disposed tubes '49 through which air may pass from chamber 37 tochamber 21. Lo cated below thesetubes and in the chamber between the lower portions ofy walls 18,Y 33, 41. and 42 is a suitable burner 50 for, gas lor liquid hydrocarbon, the supply Vpipe for which burner'passes through the base plate 11 or through the rear wall 15 and partitions 39.' and 42, and formed through the front ywall 14 and partitions 3S and 41 is an open'- ing in which is located a door frame 51. This door frame is preferably located below the lowermost row of tubes 49 in order that access may be readily had to the chamber in which the' burner 50 is located.

Hinged to this frame 51 is a door 52.

Y During the operation of my improved l'ieater, the flames from burner 50 will effectively heat practically the entire body of the heater and particularly the upper portion including the horizontally disposed tubes 49. As motor 31 is operated, fan 3() will be driven at a comparatively high rate of speed, thereby creating a suction of air through pipe 13 and this incoming air will to a large extent absorb whatever heat which would otherwise'be carried oii by the smoke and products of combustion passing through outlet pipe 4S. The incoming air passes through chamber 47; from thence into chamber 36; thence downwardly through said last mentioned chamber and the chainbers 43; thence through the perforations 35 and 40 in the lower portions of partitions 34, 38 and 39; thence upwardly through chambers 37 and 44; thence through the rows of horizontally disposed tubes 49; thence downward through chamber 21 into pocket 20'; thence through opening` 2G into and through thel chamber within fan housing 22; and from thence into and through distributing pipe 29 leading to lthe interior of the car. i

In thus passing through the heater, the air will become heated' to a considerable degree and in such condition will be forced into the distributing` pipe or pipes leading through the car. j

One of the particularly desirable features of in-y improved heater is the arrangement and manner ofV mounting the fan housing, for it will be readily observed that the entire housing, the fan and the motor can be easily andquickly detached from the heater by withdrawing the bolts which secure the edgeof plate 24 and said' fan housing to the wall 16. Y

A heater of my improved construction is relatively simple, can be easily and cheaply manufactured, is very compact, is economical in point of fuel consumption, and by using afan to produce Vsuction of' air into andthrough the heater, the latter is very eifective inoperation. It fwill be readily understood vthatV minor changes inr the size, form and construction of the various parts of my improved heater may be made and substituted for those herein shown and described, without departing from the spirit of my invention, the scope of which is set forth in the appended claims.

I claim: y

1. In a car heater, a heater body in the form ofV a housing, partitions arranged therein to` form a series of communicating air circulating chambers, a series of open tubes seated in certain of the partitions toestablish communication from one heating chamber to another, a burner arranged below said tubes, a' fan housing removably positioned in one oi the outer walls of the heater body, said fan housing being provided with an opening which communicates with one of the air circulating chambers within the heater,

a suction fan within said fan housing, and a motor carried by said fan housing and connected to said fan.

2. In a car heater, a heater body in the form of a housing including a top plate, a series of partitions arranged therein to form communicating air circulating chambers, there being an air inlet opening in the top plate of said housing, which opening communicates with one of the air circulating chambers, a burner arranged in thelower portion of said heater, one of the partitions within' said heater being provided in its lower portion with a pocket, there being an opening in the outer wall of the heater body opposite said pocket, a housing positioned in said opening and projecting into said pocket which housing is bodily removable `from said pocket, said housing being provided with air inlet and outlet openings, a suction fan Copies of this patent may be obtained for five cents each, by addressing the Commissioner said housing, certain of which partitions are perforated to establish communication between the aircirculating chambers, a plurality of horizontally disposed pipes arranged in the upper portion of the heater for establishing communication between the inner one of the pair of air circulating chambers and the single air circulating chamber, a fan housing removably seated in one of the walls of the heater housing and projecting Y into the single air circulating chamber, said fan housing being provided with inlet and outlet openings, a suction fan mounted for operation within saidfan housing, and a motor carried by and arranged on the eXterior of said fan housing and directly connected to said fan. i

In testimony whereof I hereunto afix my signature, this 17th day of May, 1918.

JAMES J. ROHAN.

of Patents, i

Washington, D. C. 

